Is there a game list somewhere It says 200 games but from looking at the pic of the box the games seem to be unknown rather than any actual classic games - so hard to tell if it would be worthwhile to hack.

Ahh - so your just wanting to use the outer case, display, etc. to hook up to a Pi then -- have you actually tried one and what are the buttons and joystick like in use or would you need to replace them for decent play and is the 2.5" monitor a decent resolution to see on ?? I have a small setup using an old 7" portable DVD monitor and one of the Jakks Pac Man games and even it is hard to see the games on for play so unless it is a very good 2.5" monitor I'd think it would be hard to play on.

It might be a clear display. Online reviews complain about the controls and quality of the games.

I have the Adafruit Cupcade. It runs the RP1 and 2.8" display (mine in vertical). Very clear display. Runs great. Not a fan of the analog joystick, but it works with the 4/8 way microswitch games just fine. I'd like to convert the joystick to one like this micro-arcade. Might get one just to pull out the joystick.

I've made one cannibalizing the parts from an old pi grrl zero and it works pretty well. Only a few issues mainly due to a lack of buttons. I'm waiting on some parts for a 2.0 version and I'll post a how to in the coming weeks. The big thing I need to find is a way to patch into the existing screen. Anyone know where I can get a controller board for a 14 pin screen?

I'll be trying this with my son over these school holidays. His arcade machine is conveniently broken, I suspect the logic board, as no sounds or light happen. I have a spare Pi Zero and a "Picade" hat ready for the transplant. I am a regular watcher of Ben Heckendorn on Youtube, and conveniently this week, he was hacking one of those cheap and nasty screen. Watch this and enjoy. Tomorrow will be part 2.https://www.youtube.com/watch?v=x0EGnydxxf4

I've gotten one of the BurgerTime cabinets. It is a "Micro Arcade" from a company named "My Arcade" I've torn it down, and looking at the innards. It looks like the screen's driver, audio and the driver for the controls may all be buried under the bulk of the black goop they poor over the main chips. I've never removed that before, but I'd be willing to give it a try. Getting this thing apart required carefully removing almost every single sticker. Luckily, the stickers are very thick and made very well. I was able to pull them off with almost no visible damage to the stickers themselves.

This is the closest image I could get so far, showing what I'm currently assuming is an audio chip. Also, the ribbon on the right is to the screen, it is soldered to the driver board instead of using a quick connect clip.

I'll keep researching, and need to figure out how to get this black silicone goop off to see if it's a all in one chip, or if I can solder things to the driver. Right now, I'm not thinking I'll be able to reuse the screen with a pi.